串联密炼机恒温混炼工艺性能的研究

Research on Constant Temperature Mixing Process of Tandem Mixer

对IM550E/IM1000ET重型串联密炼机恒温混炼与恒转速混炼工艺性能进行对比研究。结果表明:与恒转速混炼工艺相比,在混炼时间基本相同条件下恒温混炼工艺能耗下降56%,降低母炼胶单位门尼粘度能耗下降33%,终炼胶门尼粘度增大11%,炭黑分散性下降,老化前胶料的定伸应力、拉伸强度和拉断伸长率等物理性能略有下降,但老化后物理性能增强,与钢丝帘线粘合性能提高,滞后损失及生热相当。

The processing property of constant temperature mixing and constant rotor speed mixing of IM550E/IM1000ET heavy duty tandem mixer was comparatively investigated.The results showed that,compared with the constant rotor speed mixing process,under the condition of basically the same mixing time,the energy consumption of the constant temperature mixing process was lower by 56%,the energy consumption of decreasing per unit Mooney viscosity of the masterbatch was lower by 33%,the Mooney viscosity of the finished batch increased by 11%,the dispersion of carbon black decreased,the physical properties such as the modulus,tensile strength and elongation at break of the compound decreased slightly before aging,but increased after aging,the adhesion property with steel cord was enhanced,and the hysteresis loss and heat build-up were equivalent.